For nanoCAD objects there are two selection method;
2.4.1 FROM LEFT TO RIGHT
If you click left button on your mouse and while clicking if you scan from left to right like the one here;

and leave it there; you will see that nothing is chosen;

But if you do the same operation by getting the “scanning rectangle” over the whole objects you will see it selects;


This is why left to right selection select only if you get them inside that scanning rectangle. For example you can only get the line on the left by scanning like this;


2.4.2 FROM RIGHT TO LEFT
If you select from right to left, you don’t need to try to get items inside the rectangle you can only touch them with rectangle is enough. So, if you do something like this;

It will select the hatch top and right hand side lines as well ignoring if they are completely inside the rectangle or not;


